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zeus
2025-01-22 16:22:33 +08:00
parent 09b9cec8ec
commit 738c373a77
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iOS-SwiftUI-Code/GRDB.swift-6.29.3/Tests/GRDBTests/ValueObservationFetchTests.swift
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import XCTest
import GRDB
class ValueObservationFetchTests: GRDBTestCase {
func testFetch() throws {
// Count
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchOne($0, sql: "SELECT COUNT(*) FROM t")!
},
records: [0, 1, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
// Select rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchAll($0, sql: "SELECT id FROM t ORDER BY id")
},
records: [[], [1], [1], [1, 2]],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
// Select non-rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try String.fetchAll($0, sql: "SELECT name FROM t ORDER BY name")
},
records: [[], ["Arthur"], ["Arthur", "Barbara"]],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY, name TEXT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t (name) VALUES ('Arthur')")
try db.execute(sql: "UPDATE t SET id = id") // does not trigger the observation
try db.execute(sql: "INSERT INTO t (name) VALUES ('Barbara')")
})
}
// Regression test for https://github.com/groue/GRDB.swift/issues/954
func testCaseInsensitivityForTable() throws {
// Count
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchOne($0, sql: "SELECT COUNT(*) FROM t")!
},
records: [0, 1, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE T(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
// Select rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchAll($0, sql: "SELECT id FROM t ORDER BY id")
},
records: [[], [1], [1], [1, 2]],
setup: { db in
try db.execute(sql: "CREATE TABLE T(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
// Select non-rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try String.fetchAll($0, sql: "SELECT name FROM t ORDER BY name")
},
records: [[], ["Arthur"], ["Arthur", "Barbara"]],
setup: { db in
try db.execute(sql: "CREATE TABLE T(id INTEGER PRIMARY KEY, name TEXT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t (name) VALUES ('Arthur')")
try db.execute(sql: "UPDATE t SET id = id") // does not trigger the observation
try db.execute(sql: "INSERT INTO t (name) VALUES ('Barbara')")
})
}
// Regression test for https://github.com/groue/GRDB.swift/issues/954
func testCaseInsensitivityForFetch() throws {
// Count
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchOne($0, sql: "SELECT COUNT(*) FROM T")!
},
records: [0, 1, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
// Select rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchAll($0, sql: "SELECT ID FROM T ORDER BY ID")
},
records: [[], [1], [1], [1, 2]],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
// Select non-rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try String.fetchAll($0, sql: "SELECT NAME FROM T ORDER BY NAME")
},
records: [[], ["Arthur"], ["Arthur", "Barbara"]],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY, name TEXT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t (name) VALUES ('Arthur')")
try db.execute(sql: "UPDATE t SET id = id") // does not trigger the observation
try db.execute(sql: "INSERT INTO t (name) VALUES ('Barbara')")
})
}
// Regression test for https://github.com/groue/GRDB.swift/issues/954
func testCaseInsensitivityForUpdates() throws {
// Count
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchOne($0, sql: "SELECT COUNT(*) FROM t")!
},
records: [0, 1, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO T DEFAULT VALUES")
try db.execute(sql: "UPDATE T SET ID = ID")
try db.execute(sql: "INSERT INTO T DEFAULT VALUES")
})
// Select rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try Int.fetchAll($0, sql: "SELECT id FROM t ORDER BY id")
},
records: [[], [1], [1], [1, 2]],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO T DEFAULT VALUES")
try db.execute(sql: "UPDATE T SET ID = ID")
try db.execute(sql: "INSERT INTO T DEFAULT VALUES")
})
// Select non-rowid
try assertValueObservation(
ValueObservation.trackingConstantRegion {
try String.fetchAll($0, sql: "SELECT name FROM t ORDER BY name")
},
records: [[], ["Arthur"], ["Arthur", "Barbara"]],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY, name TEXT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO T (NAME) VALUES ('Arthur')")
try db.execute(sql: "UPDATE T SET ID = ID") // does not trigger the observation
try db.execute(sql: "INSERT INTO T (NAME) VALUES ('Barbara')")
})
}
func testRemoveDuplicates() throws {
try assertValueObservation(
ValueObservation
.trackingConstantRegion(Table("t").fetchCount)
.removeDuplicates(),
records: [0, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
}
func testRemoveDuplicatesBy() throws {
try assertValueObservation(
ValueObservation
.trackingConstantRegion { try Int.fetchOne($0, sql: "SELECT COUNT(*) FROM t")! }
.removeDuplicates(by: ==),
records: [0, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
try db.execute(sql: "UPDATE t SET id = id")
try db.execute(sql: "INSERT INTO t DEFAULT VALUES")
})
}
func testRemoveDuplicatesBy2() throws {
try assertValueObservation(
ValueObservation
.trackingConstantRegion { try Int.fetchOne($0, sql: "SELECT COUNT(*) FROM t")! }
.removeDuplicates(by: { _, _ in false }),
records: [0, 1, 1, 2],
setup: { db in
try db.execute(sql: "CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT)")
},
recordedUpdates: { db in
try db.execute(sql: "INSERT INTO T DEFAULT VALUES")
try db.execute(sql: "UPDATE T SET ID = ID")
try db.execute(sql: "INSERT INTO T DEFAULT VALUES")
})
}
}